发明人罗永刚,李文辉,马晓峰. "Method for the Synthesis of 7-Bromo-1-cyclopropyl-6-fluoro-5-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109163373 A, 授权公告日 2024-05-05.
发明人林芳,李文辉,马晓峰. "A Process for Preparing High-Purity 7-Bromo-1-cyclopropyl-6-fluoro-5-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111108890 A, 授权公告日 2020-11-10.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2022, 1258, (5), 9020-9046.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2022, 2335, (5), 9645-9672.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 7-Bromo-1-cyclopropyl-6-fluoro-5-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Using HRMS and NMR". J. Agric. Food Chem., 2014, 1430, 7680-7700.